Tilting mechanism for dumping-bodies



G. W. BERRY. TILTIHG MECHANISM FOR DUMPING BODIES. APPLICATION mm APR- 3. 1920.

1,392,107, PatentedSept. 27,1921.

3 SHEETS-SHEET I.

G. W. BERRY. TILTING MECHANISM FOR DUMPING BODIES- APPLICATION FILED APR- 3, I920- PatentedSept. 27,1921.

3 SHEETS-SHEET 2.

: Z1. ...i| Il l v e. w. BERRY. IILTING MECHANISM FOR DUMPING BODIES.

APPLICATION mm APILB. 19 20.

"PatentedSept. 27, 1921.

Q1 l Q a,

o I\. g I? #3 1 free swlnging-movement lateral the normal position of said UNITED STATES PATENT OFFICE.

GEORGE .W. BERRY, OF KANE, PENNSYLVANIA.

TIL'IING MECHANISM FOR DUMPING-BODIES.

, To all whom it mag concern Be it known that I, Gnonen W. BERRY, a citizen of. the United States, residin at ane, in the county of McKean and tate of Pennsylvania, have invented certain new and useful Improvements in a Tiltin Mech-' anism for Dumpin -Bodies, of whlch the following is a specification.

he invention relates to a tilting mechanism for dumping bodies and more particularly to the class of operating mechanism for dumping bodies of motor vehicles and mechanism for effecting the tilting action thereof.

The primary object of the invention is the provision of a tilting mechanism for tilting bodies, wherein the same is adapted for support upon the truck frame of a vehicle, so that the bod can be tilted rear; wardly or to either si e of the truck frame,

the mechanism for effecting the tiltin of' said body being 'dis osed and arrange in a novel manner so 5181) said mechamsmis under the control of the 0 erator ofthe truck and on the raising o the body the same can be brought to a. maximum tilting position or at any angle intermediate of body and the maximum raised position thereof.

Another object .of the invention is the provision of a tilting mechanism for dump- 1 ing bodies, 'wherein the same has connection with hydraulic mechanism,-

gitudinally within the truck frame of a vehicle and is so connected with said body that the latter can be raised under fulcrum action at an intermediate point thereof, so that the body may swing from one end or from either side thereof for. the tilting of the body to effect end dumping or side dumping. 1

A further object of the invention is the provision of a tilting mechanism for .dumplng bodies, wherein the hoisting mechamsm therefor includes one or a draulic jacks having telescopically arranged pistons operable for imparting the requisite tilting movement to thebody for end or side dum ing, the. jack or located an suspended in the truck frame to afford'the necessary road clearance and to maintain the body when 'in normal loading position close to the truck frame, thereby suspended for y and Ion-.7

standard types of tilti plurality of hyjacks being;

pended.

Specification of Letters Patent. Patented Sept, 27, 1921, Application fi1ed Ap1-il 3,

1920. Serial No. 371,045.

enabling the convenient loading of the body when in its normal osition. v

A still further ob ect of the invention is the provision of a tilting mechanism for umpin bodies, wherein on the raising of said he y upon the wheeled truck, the hydraulic mechanism automatically adjusts itself to compensate for the angular dlsposition of said body in the raising movements thereof, to eliminate any possible binding action and to assure the required dumping movement with des atch.

A still further 0 ject of the invention is the provision of a tilting mechanism for dumping bodies, wherein the mounting thereof for its swin 'ng movement'to effect the end and side umping eliminates .the use of cranes, hoisting cables and other appurtenances as are ordinarily employed for bringing the body to dumping. position or the owering thereof, as well as dispensing with levers and'other like equipment, the said body being su ported when in its normal position upon t e truck frame to evenly and uniformly distribute the load relative to the wheel base of the vehicle, and at the same time afi'ords maximum load capacity with a minimum wheel base.

A still further object of the invention is the provision of a tilting mechanism for dumping bodies, havi the mechanism for the raising and lowerlng thereof, located entirely beneathsaid body so as to be .out of the way to avoid an possible injury in the operation of the ha y, yet said mechanism is readily and conveniently accessible for the pu se of inspection or repairs.

A sti 1 further object of the invention is the provision of a tilting mechanism of this character, which is adaptable for use with ed a- Other objects of the invention will be in out.

The invention accordingly consists in the features and arrangement of parts, the con struction of which will exemplified in the detailed description hereinafter set forth and the scope of the application will be clearly defined in the In the accompanying drawings Figure 1 is a fragmentary side elevation of a truck, the same "being; partly broken .part obvious and in p'artfhereinafter pointed claims hereunto api i which are'of a required length to extend I tuted by away, showing by full lines the loading position of its body and by dotted lines, the rear end dumping position thereof with the automatic dumping mechanism construction in accordance with the invention applied.

Fig. 2 is a rear end elevation showing by full lines, the truck body in normal loading position and by dotted lines in side tiltingFposition.

ig. 3 is a fragmentary top plan view showin the body of the truck removed and hydraulic jacks detached from said body and associated with the fluid pumping and circulating system.

Fig. 4. is an enlarged vertical sectional elevation through one of the hydraulic jacks detached from the body of the truck.

Fig. 5 is an enlarged top plan view showing the mounting for the hydraulic jacks detached from the chassis of the truck.

Fig. 6 is an elevation thereof showing the mounting in position relative to the chassis, the side sillsof the latter being indicated by dotted lines.

Fig. 7 is an end elevation of the mounting detached.

Similar reference characters indicate corresponding parts throughout the several views in the drawings. 1 7 Referring to the drawings in detail, A designates generally, a conventional form of motor truck having suitably mounted on its chassis B, rearwardly of thefront seat C, a supporting bed including a substantially rectangular shaped frame 10, superimposed upon the. side beams of the chassis B and fastened thereto in any suitable manner. Arranged upon the bed constithe frame 10 transversely of its side beams near the front and rear ends thereof are pairs of spaced parallel angle bars 11 beyond opposite sides of'the frame 10 to overhang the wheels of the motor truck, the base flanges 12 of said angle bars being suitably secured to the frame 10 to form a rigid part thereof for the mounting of the tilting or dumping body 13, which is of any conventional form and of any load capacity, the mounting of said body 13, being hereinafter fully described.

Secured to the bottom of the body 13, near opposite ends thereof are pairs of spaced parallel angle bars 14, the same being secured to said body in any suitable manner and are properly spaced in pairs transversely of the body to loosely fit between the angle these bars 14: are co-extensive with the bars 11. while at the rear end of the body 13 are bearing brackets 15, preferably in the form of ears to fit within furcated keepers 16 mounted at the rear end of the bed frame 10, the cars 15 andikeepers 16,.being formed with suitable holes for accommodating rebars 11 on the bed frame 10 and movable pivot pins 17 so that when the bearings 15 are pivoted in the keepers '16, the body 13 can be raised from a forward point on the pivot pins 17 which constitute the fulcums therefor for the tilting of the body to bring the same to a rear-end dumping position.

Mounted in the pairs of angle bars 12 adjacent to opposite ends thereof are removable fulcrum pins 18, while the angle bars 14:, adjacent to their ends are formed with openings 19 for accommodating the fulcrum pins 18, thus it being seen that the tilting body 13 can be rocked on the fulcrum pins 18 at either side of the base frame 10 for the side dumping of the body. It is to be understood of course, that the pivot pins 17 are removed from the bearings 15 and keepers 16 when the body 13 is to be tilted to one side or the other of the motor truck. Also it is necessary that the pins 18 on one side of the truck'be removed when the body is to be tilted on the pins 18 at the other side thereof for the dumping of the body to this side of. the truck and when the body 13 is to be tilted for rear-end dumg ing all pins 18 are removedand the said fu crum pins 17 are inserted to connect the bearings 15 to the keepers 16 for pivotal movement. Suitably secured 'at the side beams of the chassis Eat the required point spaced forwardly from the rear wheels of the motor truck are trunnion bearings 19 while disposed transversely between the side beams of said chassis B is a rocking hanger, preferably including spaced parallel bars 20 ioined at their ends with trunnions 21 which fit in the trunnion bearings 19' and mounted upon said bars 20,- contiguous to the trunnions 21 are trunnion bearings 22, having j ournaled therein the trunnions 23 at opposite points of embracing rings 24 in which are fixed the hydraulic jacks of the tilting mechanism hereinafter fully described.

The hydraulic jack each comprises acylinder 25 is supported in the ring 24 in any suitable manner and working within this cylinder ing pistons 26 and 27 respectively, the stem of the piston 27 constituting a fluid cylinder for the inner piston 26, said outer piston 27 being slidable in inner piston ton 27 in the telescopic movement of the pistons. The inner piston 26 is formed with an outer ball terminal 28 engaged within a two-part ball socket member is suitably fastened to the under side of the body 13 so that a ball and socket connection is had between each hydraulic jack and the tilting body, it being preferable to employ two hydraulic jacks and by sup porting the same in the rings 24, it will be clearly apparent that these jacks are free are inner and outer teleseop- 29, which for oscillatory movement in directions both longitudinally truck.

By reason of the mounting of hydraulic jacks and the particular location thereof in the motor truck when V ated, the body 13 can be tilted for end dumping or side dumping, the jacks being operated in a manner presently described.

Suitably supported upon the chassis B of the motor truck A, preferably at the for- Wardportion thereof is a fluid storage reservoir or tank 30 and the supply of fluid to the hydraulic jacks therefrom is effected by suitable pumping mechanism adapted to be thrown into gear with, and out of gear said jacks are operfrom the transmission mechanism of the lief valve a motor truck, the

pumping mechanism being conventionally shown at 31 and is under the control of the operator of themotor truck. The pumping mechanism 31, is operatively connected with the tank or reservoir 30, which latterhas communication through a circulating system 32, of any approved type, with the'several hydraulic jacks so that the fluid under ered thereto for the extending of the telescopic pistons 26 and 27 thereof, to effect the tilting of the body 13 'forend and side dumping. The fluid supply'from the reservoir or tank 30 is operated and controlled in any suitable manner so as to properly actuate the hydraulic jacks, whereby the tilting body '13 will be raised and lowered thereby. The fluid circulating mechanism for the hydraulic jacks includes suitable flexmechanism may be of any conventional or well-known construction having included therein any approved form of automatic reand hand operated re lating valve 6 for the circulation of the flui and the control thereof in the automatic operation of the hydraulic jacks-,thesalient features of the present invention being related solely to the disposition, the construction and the arrangement of the hydraulic jacks in the chassis of the motor truck and the construc-' tion and arrangement of the tiltin body 13 and the connection of the jacks t erewith.

at is claimed is:

1. The combination with a supportingframe, of a tiltin body, changeable connections between t e frame and body for selective side or end tilting of the latter,

jacks disposed intermediate the ends of said frame and spaced apart and removed from and at o posits sides of the longitudinal center of t e frame, a swivel connection between the jacks the body, and supports and laterally of the motor pressure can be deliv-' arranged in pairs for'the jacks to permit lateral and longitudinal swingin movements ther of.

2. The com ination with a body adapted to be supported for tilting movement in the direction of one end and opposite sides thereof, of telescopic, hydraulic jacks, spaced apart and disposed intermediate of the ends of said body, beneath the same, means supporting said jacks and coacting therewith to permit lateral and longitudinal swinging movements of said jacks beneath said body, and connections between the jacks and said body to permit the tilting of the body either endwise or sidewise to opposite sides thereof.

3. The combination with a bed, of a rocking hanger in said bed, a jack movably supported in the rocking hanger and adapted for swinging movement at right angles to the axis of movement of said hanger, a body carried by the bed and supported thereon for end or side tilting movements, a connection between said body and jack, and means for connecting the tilting body positively with the basewhen sai body is raised end or sidewise.

4. The combination with a plurality of telescopic hydraulic jacks, of a body supering the jacks in spaced relation with respect to each other and permitting lateral and longitudinal swin ing movement, and ball and socket connections between the body and jacks.

5. The combination with a supporting frame of a tilting body, a plurality of hydraulic jacks disposed intermediate the ends of the frame beneath the tilting body, means fixed to. the frame for supporting the jacks in spaced relation to each other on opposite sides of the longitudinal center of said frame, and constructed and arranged to permit lateral and longitudinal swinging movements-of said jacks, balland socxet connections between the tilting body and, said jacks and means forming pivotal axes for the body to permit selective side or end tilting thereof.

6. In tiltin mechanism for vehicle bodies, a support a apted for mounting upon the chassis of a motor vehicle, trunnion bearings arranfipd intermediately upon said support, a roc of the support and aving trunnions engaging the" trunnion'bearings, second trunnion bearings mounted upon rocking hangers and on oppositesides of the longitudinal center of said. support, swmging members engaged in the second bearings and disposed for movement atright an les to the axis of movement. of the rocking hanger, hydraulic jacks carried in the swinging elements and having telescopically assembled pistons,

a body normally horizonng han er disposed transversely tally disposed upon the support and having connection with the pistons of the hydraulic jacks so that on the operation of the same the body will be moved in selected lateral angular disposition or in a longitudinal angular disposition relative to said support.

7. The combination with a tilting dumping body, of a pair of spaced jacks constructed and arranged to be mounted within a support to be disposed on opposite sides of the longitudinal center of said support and at a point intermediate the ends of the body for longitudinal and lateral angular movements and having connection with the body whereby on actuating the jacks the said body can be tilted endwise or sidewise to either side thereof.

8. The combination with a hoisting jack adapted to be connected with a superposed body, the latter being adapted to be superimposed upona wheeled truck, of means for supporting the jack and located intermediate the ends of the vehicle chassis for per mitting lateral and longitudinal swinging movement of said jack for the side and end dumping of the body.

In testimony whereof, I afiix my signature hereto.

GEORGE W. BERRY. 

